Portable weeding machine for organic paddy field

Abstract

The utility model relates to the field of portable weeding machine for organic paddy field, especially portable weeding machine for organic paddy field, including horizontal cross bar, the front end below of horizontal cross bar is fixedly connected with the support slide that is used for contacting with the paddy field ground through support rod spare, the rear end below of horizontal cross bar is fixed with two mounting bracket, the weeding roll is rotatably connected on the mounting bracket, the weeding blade is installed to the weeding roll side wall equiangularly, the operating lever spare is installed on the horizontal cross bar, this portable weeding machine for organic paddy field can lock connecting rod, extension sleeve and horizontal cross bar as parallel state through the positioning hole of horizontal extension part, the whole machine length shortens, and one person can easily carry, and when storing, it does not occupy too much space, solves the pain point of traditional paddy field weeding machine " big volume is difficult to store ".

Description

Technical Field

[0001] This utility model relates to the field of portable weeding machines for organic paddy fields, and in particular to a portable weeding machine for organic paddy fields. Background Technology

[0002] In paddy field cultivation, weeding is a crucial step in ensuring the healthy growth of crops and increasing yields. Traditional paddy field weeding methods mainly rely on manual weeding and some simple weeding tools. Manual weeding is extremely labor-intensive and inefficient, especially in large paddy fields, requiring a large workforce. Furthermore, prolonged bending over while working can easily lead to worker fatigue, affecting the quality and progress of weeding.

[0003] With the development of agricultural mechanization, some paddy field weeding machines have been gradually applied to agricultural production. However, existing paddy field weeding machines have many problems and are difficult to meet actual production needs, especially in terms of ease of operation and operational stability.

[0004] Poor length adaptability Operators of different heights have different requirements for the length of the weeding machine's control lever. However, many existing paddy field weeding machines have a fixed control lever length, which cannot be adjusted according to the user's height. This means that taller operators need to bend over to work, which can easily lead to lower back fatigue over time; while shorter operators may need to stand on tiptoe to operate, increasing the burden on their arms and reducing the comfort and efficiency of the operation.

[0005] Inconvenient to store and transport Traditional paddy field weeders suffer from poor structural design, resulting in a large overall size and irregular shape. This requires significant space for storage, posing a major problem for farm implement storage facilities with limited space. Furthermore, their large size and uneven weight distribution make them difficult to move by a single person, requiring multiple people to work together, increasing transportation costs and difficulties.

[0006] The existing paddy field weeding machines have shortcomings in operational stability. Inadequate support structures lead to easy sinking and tipping. Most existing paddy field weeders have simple support structures with poor contact with the paddy field surface. Some equipment has a small contact area between its support components and the ground, making it easy to sink into the muddy environment of the paddy field, preventing the equipment from moving properly and affecting the continuity of weeding operations. At the same time, some support structures lack effective lateral restraint measures, making them prone to tipping over when encountering lateral forces during operation, which can not only damage the equipment but also potentially injure the operators.

[0007] Therefore, it is necessary to provide a portable weed cutter for organic paddy fields to solve the above-mentioned technical problems. Utility Model Content

[0008] To solve the above-mentioned technical problems, this utility model provides a portable weeding machine for organic paddy fields.

[0009] This utility model provides a portable weeder for organic paddy fields, including a horizontal crossbar. A support plate for contacting the paddy field ground is fixedly connected to the lower front end of the horizontal crossbar via a support rod. Two mounting brackets are fixed to the lower rear end of the horizontal crossbar. Weeding rollers are rotatably connected to the mounting brackets. Weeding blades are installed at equal angles on the side walls of the weeding rollers. An operating lever is installed on the horizontal crossbar.

[0010] Preferably, the operating lever includes a connecting rod and an extension sleeve. An ear plate and a limiting plate are fixed on the horizontal crossbar. A connecting rod is hinged between the ear plate and the limiting plate. The limiting plate has a horizontal extension and an inclined extension. Both the horizontal extension and the inclined extension have positioning holes. A positioning lever for engaging with the positioning holes is installed inside the connecting rod. An extension sleeve is slidably connected to the end of the connecting rod. A locking screw is threadedly connected to the side wall of the extension sleeve, and the end of the locking screw is fixed to the connecting rod by friction.

[0011] Preferably, the positioning rod includes a locking rod, and the locking rod is slidably connected to the connecting rod in a direction perpendicular to the horizontal bar, and the end of the locking rod cooperates with the positioning hole.

[0012] Preferably, the connecting rod has an installation groove, the locking rod has a baffle fixed to its side wall and the baffle contacts one side wall of the installation groove, and the locking rod has a spring sleeved on its outside, with the two ends of the spring contacting the baffle and the other side wall of the installation groove, respectively.

[0013] (a) Preparation stage Angle adjustment and locking: The user pulls the hand lever at the end of the locking rod to overcome the spring force and disengage the locking rod from the positioning hole of the limiting plate; rotate the connecting rod around the hinge point between the ear plate and the limiting plate, align the positioning hole of the inclined extension with the locking rod, and after releasing the hand lever, the spring pushes the locking rod into the positioning hole through the baffle to complete the working angle locking. Length adjustment and fixing: The sliding extension sleeve extends and retracts along the connecting rod. After adjusting it to fit the user's height, tighten the locking screw on the side wall of the extension sleeve. The length is fixed by the friction between the end of the screw and the connecting rod to prevent loosening during operation.

[0014] (II) Operation Execution Phase Support and gliding: The user holds the handlebar and pushes the whole machine forward. The support plate at the front of the horizontal bar contacts the paddy field ground through the bottom plate. The vertical plates on both sides prevent tipping over, and the inclined plate at the front reduces forward resistance, so that the whole machine can glide smoothly on the paddy field surface and avoid getting stuck in the mud. Rotary weeding: During the forward movement, the weeding roller rotates around the mounting frame under the friction or traction force of the paddy field ground. The weeding blades installed at equal angles on its side walls rotate synchronously, uniformly cutting the weeds within the coverage area of ​​the rear end of the horizontal bar to complete the weeding operation.

[0015] (III) Collection and Transportation Stage Pull the lever again to disengage the locking rod from the positioning hole of the inclined extension. Rotate the connecting rod until it is parallel to the horizontal bar, align the locking rod with the positioning hole of the horizontal extension and lock it. At this time, the connecting rod and the extension sleeve are in contact with the horizontal bar, and the overall size of the machine is greatly reduced, making it easier to transport and store.

[0016] Preferably, a handle is fixed to the end of the extension sleeve, which makes it easy for farmers to push the weeder by hand.

[0017] Preferably, the support slide plate includes a base plate, vertical plates fixed on both sides of the base plate, and an inclined plate fixed at the front end of the base plate and the vertical plates. The support slide plate at the front end of the horizontal crossbar contacts the paddy field surface through the base plate. The vertical plates on both sides prevent tipping over, and the inclined plate at the front end reduces forward resistance, so as to achieve smooth gliding of the whole machine on the paddy field surface and avoid getting stuck in the mud.

[0018] Preferably, a pull plate is fixed to the end of the locking rod, the core function of which is to provide the user with a convenient point for manual force application. When it is necessary to adjust the angle of the connecting rod, the user does not need to use tools, but only needs to pull the pull plate to easily overcome the spring force and pull the locking rod out of the positioning hole. After the angle is adjusted, the user can release the plate, and the locking rod will automatically reset and lock under the action of the spring.

[0019] Compared with related technologies, the present invention provides the following beneficial effects: I. Significantly improved ease of operation and reduced labor costs Efficient and labor-saving angle adjustment: Users can apply force directly without tools by pulling the lever at the end of the locking rod. Combined with the semi-automatic reset function of the spring, the operation of "pulling to unlock - adjusting angle - releasing lock" can be completed quickly.

[0020] Flexible and convenient length adaptation: The extension sleeve can slide freely along the connecting rod and is fixed by friction with the locking screw. It can adjust the grip height of the handrail according to users of different heights, avoiding bending over or tiptoeing to work, and reducing fatigue in the waist and arms.

[0021] Easier to store and transport: The connecting rod, extension sleeve and horizontal bar can be locked in a parallel state through the positioning holes of the horizontal extension, shortening the overall length of the machine. It can be easily carried by a single person and does not take up too much space when stored, solving the pain point of traditional paddy field weeders being "large in size and difficult to store".

[0022] II. High operational stability, adaptable to complex paddy field environments. Support for sliding and preventing sinking and tipping: The combination design of the "base plate + two side vertical plates + front inclined plate" of the support plate not only increases the contact area with the paddy field ground through the base plate to prevent the whole machine from sinking into the mud; it also limits lateral deviation through the vertical plates to prevent tipping during operation; the front inclined plate can also reduce the resistance of mud and water when moving forward, making it easier to push.

[0023] The locking structure is reliable and does not loosen: the rigid fit between the locking rod and the positioning hole, combined with the continuous pre-tightening force of the spring on the baffle, can effectively resist vibration during operation and avoid angle deviation; the locking screw of the extension sleeve is fixed by friction to ensure that there is no slippage after length adjustment. The double locking structure allows the whole machine to maintain a stable working posture in bumpy paddy fields. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of one side of the overall structure of this utility model; Figure 2 This is a schematic diagram of the other side of the overall structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the mounting slot of this utility model.

[0025] The following are the labeling elements in the diagram: 1. Horizontal bar; 2. Support rod; 3. Support slide plate; 4. L-shaped mounting bracket; 5. Weeding roller; 6. Weeding blade; 7. Operating rod; 8. Connecting rod; 9. Extension sleeve; 10. Ear plate; 11. Limiting plate; 12. Horizontal extension; 13. Inclined extension; 14. Positioning hole; 15. Positioning rod; 16. Locking screw; 17. Locking rod; 18. Mounting groove; 19. Baffle; 20. Spring; 21. Handrail; 22. Base plate; 23. Vertical plate; 24. Inclined plate; 25. Pull plate. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Please refer to the following: Figures 1 to 3 A portable weed cutter for organic paddy fields comprises several key components. A horizontal crossbar 1, serving as the core support structure, is located at the top of the machine. Below the front end of the horizontal crossbar 1, a support plate 3 is fixedly connected via a support rod 2. This support plate 3 provides stable support for the weed cutter by directly contacting the paddy field surface. Below the rear end of the horizontal crossbar 1, two L-shaped mounting brackets 4 are fixedly attached. Weeding rollers 5 are rotatably mounted on the mounting brackets 4, and multiple weeding blades 6 are installed at equal angles on the side walls of the weeding rollers 5 for cutting weeds. Additionally, an operating lever 7 is mounted on the horizontal crossbar 1 for convenient user operation of the weed cutter.

[0028] The operating lever 7 is ingeniously designed, consisting of a connecting rod 8 and an extension sleeve 9. An ear plate 10 and a limiting plate 11 are fixed to the horizontal crossbar 1, and the connecting rod 8 is hinged to the ear plate 10 and the limiting plate 11, allowing the connecting rod 8 to rotate around the hinge point. The limiting plate 11 has a horizontal extension 12 and an inclined extension 13, both of which have positioning holes 14. A positioning lever 15 is installed inside the connecting rod 8 to engage with the positioning holes 14, enabling locking of the connecting rod 8 at different angles. The end of the connecting rod 8 is slidably connected to the extension sleeve 9, and a locking screw 16 is threaded onto the side wall of the extension sleeve 9. The end of the locking screw 16 is fixed to the connecting rod 8 through friction, allowing the length of the operating lever 7 to be adjusted according to the user's height.

[0029] The positioning rod 15 specifically includes a locking rod 17, which is slidably connected within the connecting rod 8 in a direction perpendicular to the horizontal crossbar 1, and the end of the locking rod 17 can engage with the positioning hole 14 on the limiting plate 11. To achieve automatic reset of the locking rod 17, the connecting rod 8 has a mounting groove 18, and a baffle 19 is fixed to the side wall of the locking rod 17, contacting one side wall of the mounting groove 18. A spring 20 is sleeved on the outer side of the locking rod 17, with both ends of the spring 20 contacting the baffle 19 and the other side wall of the mounting groove 18, respectively. When the locking rod 17 is pulled, the spring 20 is compressed; upon release, the spring 20 pushes the locking rod 17 back to its original position via the baffle 19.

[0030] Preparation stage of assignment Angle Adjustment and Locking: When the user needs to adjust the angle of the operating lever 7, first pull the hand lever 25 at the end of the locking lever 17. At this time, the spring force of the spring 20 must be overcome to disengage the locking lever 17 from the positioning hole 14 at the current position on the limiting plate 11. Next, rotate the connecting rod 8 around the hinge point between the ear plate 10 and the limiting plate 11, and align the positioning hole 14 of the inclined extension 13 with the locking lever 17 according to the work requirements. Then release the hand lever. Under its own elastic force, the spring 20 pushes the locking lever 17 into the selected positioning hole 14 through the baffle 19, thereby completing the locking of the working angle.

[0031] Length adjustment and fixing: According to the user's height, slide the extension sleeve 9 to extend or retract along the connecting rod 8. After adjusting to the appropriate length, tighten the locking screw 16 on the side wall of the extension sleeve 9. The extension sleeve 9 is fixed to the connecting rod 8 by the friction between the end of the locking screw 16 and the connecting rod 8, preventing loosening during operation.

[0032] Second task execution phase Support and Glide: The user holds the handle bar 21, which is fixed to the end of the extension sleeve 9, facilitating the farmer's manual effort to propel the weeder forward. During forward movement, the support plate 3 at the front end of the horizontal bar 1 contacts the paddy field surface via its base plate 22. The support plate 3 consists of the base plate 22, vertical plates 23 fixed to both sides of the base plate 22, and an inclined plate 24 fixed to the front end of the base plate 22 and the vertical plates 23. The vertical plates 23 on both sides effectively prevent the weeder from tipping over during movement, while the inclined plate 24 at the front reduces resistance during forward movement, allowing the entire machine to glide smoothly on the paddy field surface and avoid sinking into the mud.

[0033] Rotary weeding: As the weeder moves forward, the weeding roller 5 is affected by the friction or traction force of the paddy field surface, causing it to rotate around the L-shaped mounting frame 4. The weeding blades 6, which are installed at equal angles on its side walls, rotate synchronously, uniformly cutting the weeds within the coverage area of ​​the rear end of the horizontal crossbar 1, thereby completing the weeding operation.

[0034] Three stages of storage and transportation When the lawnmower needs to be stored and transported, the user pulls the lever 25 again to disengage the locking lever 17 from the positioning hole 14 of the inclined extension 13. Then, rotate the connecting rod 8 until it is parallel to the horizontal crossbar 1. At this point, align the locking lever 17 with the positioning hole 14 of the horizontal extension 12 and insert it to lock. At this point, the connecting rod 8 and the extension sleeve 9 will fit against the horizontal crossbar 1, significantly reducing the overall size of the machine and facilitating transportation and storage.

[0035] The pull plate 25 is fixed to the end of the locking lever 17, and its core function is to provide the user with a convenient point for manual force application. When it is necessary to adjust the angle of the connecting rod 8, the user does not need to use any additional tools. Simply pull the pull plate 25 to easily overcome the elastic force of the spring 20 and pull the locking lever 17 out of the positioning hole 14. After the angle adjustment is completed, release the pull plate 25, and the locking lever 17 will automatically reset and lock in the corresponding positioning hole 14 under the action of the spring 20, making the operation very convenient.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A portable weed cutter for organic paddy fields, characterized in that, The system includes a horizontal crossbar (1), with a support plate (3) for contacting the paddy field ground fixedly connected to the lower front end of the horizontal crossbar (1) via a support rod (2). Two mounting brackets (4) are fixedly fixed to the lower rear end of the horizontal crossbar (1). A weeding roller (5) is rotatably connected to the mounting bracket (4). Weeding blades (6) are installed at equal angles on the side wall of the weeding roller (5). An operating rod (7) is installed on the horizontal crossbar (1).

2. The portable weed cutter for organic paddy fields according to claim 1, characterized in that, The operating lever (7) includes a connecting rod (8) and an extension sleeve (9). An ear plate (10) and a limiting plate (11) are fixed on the horizontal crossbar (1). The connecting rod (8) is hinged between the ear plate (10) and the limiting plate (11). The limiting plate (11) is provided with a horizontal extension (12) and an inclined extension (13). The horizontal extension (12) and the inclined extension (13) are both provided with positioning holes (14). A positioning lever (15) for cooperating with the positioning hole (14) is installed inside the connecting rod (8). The end of the connecting rod (8) is slidably connected to the extension sleeve (9). The side wall of the extension sleeve (9) is connected to a locking screw (16) by thread, and the end of the locking screw (16) is fixed to the connecting rod (8) by friction.

3. A portable weed cutter for organic paddy fields according to claim 2, characterized in that, The positioning rod (15) includes a locking rod (17), and the locking rod (17) is slidably connected to the horizontal crossbar (1) in the connecting rod (8) in the vertical direction, and the end of the locking rod (17) is engaged with the positioning hole (14).

4. A portable weed cutter for organic paddy fields according to claim 3, characterized in that, The connecting rod (8) is provided with an installation groove (18). A baffle (19) is fixed on the side wall of the locking rod (17), and the baffle (19) contacts one side wall of the installation groove (18). A spring (20) is sleeved on the outside of the locking rod (17), and the two ends of the spring (20) contact the baffle (19) and the other side wall of the installation groove (18) respectively.

5. A portable weed cutter for organic paddy fields according to claim 2, characterized in that, The end of the extension sleeve (9) is fixed with a handrail (21).

6. A portable weed cutter for organic paddy fields according to claim 1, characterized in that, The supporting slide plate (3) includes a base plate (22), vertical plates (23) fixed on both sides of the base plate (22), and inclined plates (24) fixed at the front end of the base plate (22) and vertical plates (23).

7. A portable weed cutter for organic paddy fields according to claim 4, characterized in that, The locking lever (17) is fixed with a pull plate (25) at its end.

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